DURACOMM CORPORATION's SD-200D-48 Mean Well SD-200D-48 200 W enclosed type single output DC – DC converter with screw terminal I/O connections. 48 V, 4.2 A output; 72 – 144 VDC input. -20 – 60 deg. C operating temperature, 1500 VAC I/O isolation. Short circuit, overload,overvoltage protection.